波形钢板管涵的刚度计算方法

Calculation Method for Stiffness of Corrugated Steel Plate Culvert

结合波形钢板管涵的弹性力学性能与加拿大波形钢桥涵规范,以半圆弧拱为例推导了波形钢管涵结构变形的计算方法。利用此方法计算了典型尺寸的波形钢板管涵结构在填土作用下结构竖向、横向变形随填土高度的变化规律,并与工程实测结果进行了对比。对比结果显示,提出的计算方法能基本模拟波形钢板管涵结构的形状变化,除填土高度较小时拱顶竖向变形差距较大外,其余工况下提出的方法计算结果与实测值基本吻合,表明提出的波形钢板管涵结构的变形计算方法具有较高的合理性,可作为波形钢板管涵结构设计的参考。

Based on the elastic properties of corrugated steel plate culverts and the Canadian code for corrugated steel bridges and culverts,a calculation method for structural deformation of corrugated steel plate culverts was derived by taking the semi-circular arch as an example.Then,using this method,the vertical and horizontal deformation of typical sized circular corrugated steel plate culvert structures under the action of filling with the change of filling height was calculated,and the results were compared with the actually measured results.The comparison results show that the proposed calculation method can basically simulate the shape change of the corrugated steel plate culvert structure.Except for the large difference in vertical deformation of the arch crown when the filling height is small,the calculation results of this method are basically consistent with the measured values under other working conditions,indicating that the deformation calculation method of the corrugated steel plate culvert structure proposed in this paper is highly reasonable and can be used as a reference for the structural design of corrugated steel plate culverts.